he knows latino vote, younger votes could be the difference for president obama. he's trying to chip into that advantage. but the part that makes you scratch your head is why didn't you say that in the first place. >> the timing, the timing. john king, let's talk money. big, big money, karl rove's american crossroads conservative super pac buying $11 million worth of tv ads across eight different swing states. straightforward, you know, the ad talks about unemployment, a lot of numbers here, rising government spending, what is the strategy? why the huge buy-in and why now? >> reporter: why now, because we're into crunch time. there are five weeks left, brooke, and the romney campaign is behind a few points in some of the battleground states, behind a handful in ohio, florida, maybe more in virginia, six or eight in wisconsin. republicans dispute some numbers but no question a dead heat in colorado. a number of super pacs are going in with heavier spending, trying to influence voters and do that after the debate. if romney turns in a strong debate, you hope you hav